He will not loose power, as he is going from a 2 barrel to a 4 barrel carburetor, that's 25 horsepower, dual exhaust around 20 horsepower, advance the ignition timing around another 20 horsepower, where's the lose? And Chrysler didn't build a million 4 barrel 318's. You guys think that every part you install has to be huge, simply not true.